Bright and stable quaternary ammonium antimony halides for solid-state lighting

Sui, Shiqi; Wang, Chuying; Hu, Guoming; Li, Yacong; Meng, W. J.; Luo, Jingwei; Xu, Guangyong; Deng, Zhengtao

doi:10.1039/d2tc00903j

Cited by 8 publications

(3 citation statements)

References 55 publications

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“…This issue can be addressed by introducing a stereochemically active 5s 2 lone pair through Sb 3+ doping, which permits a stable host with flexible PL performance. As demonstrated in previous studies, versatile coordination modes have been observed for the highly emissive antimony halides ,− and Sb 3+ -doped metal halide compounds. ,,− …”

Section: Introductionsupporting

confidence: 52%

Rational Design of a Super-Alkali Compound with Reversible Photoluminescence

Liu

Zhang

et al. 2023

Inorg. Chem.

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The zero-dimensional (0D) (H5O2)(C4H14N2S2)2BiCl8: Sb3+ single crystal is obtained by the cooling crystallization method. Surprisingly, this compound shows reversible photoluminescence (PL) upon H5O2 +Cl– removal and insertion. To be specific, the release of H5O2 +Cl– resulted in red-orange emission with a very low photoluminescence quantum yield (PLQY). While on the reuptake of it, a bright yellow emission with a nearly 10-fold increase of PLQY was observed. Density functional theory (DFT) calculations and temperature-dependent PL experiments reveal that significant [SbCl6]3– octahedron distortion induced by guest (H5O2 +Cl–) removal at the ground state, especially at the excited state, is responsible for the disparate PL performance. Encouragingly, we also found that (C4H14N2S2)2BiCl7: Sb3+ exhibits a fast response (<3 s) to dilute hydrochloric acid with naked-eye perceivable PL color changes, rendering it a potential sensing material for hydrochloric acid.

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Section: Introductionsupporting

confidence: 52%

Rational Design of a Super-Alkali Compound with Reversible Photoluminescence

Liu

Zhang

et al. 2023

Inorg. Chem.

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“…In addition, the obtained device also exhibits a high luminous efficiency of 30.9 lm W À1 , which is comparable to other lead-free metal halides, such as (C 25 H 22 P) 2 -SbCl 5 (31.2 lm W À1 ), 49 [Na(DMSO) 2 ] 3 SbBr 6Àx Cl x (25.2 lm W À1 ) and [C 16 H 33 (CH 3 ) 3 N] 2 SbCl 5 (24.5 lm W À1 ). 51,52 Also noteworthy, the asfabricated WLED shows good color stability under different current drives (Fig. 6c), and thus Sb-doped (DPG) 3 InBr 6 has great application potential in SSL.…”

Section: Njc Papermentioning

confidence: 95%

Boosting the broadband orange emission in organic–inorganic hybrid (DPG)₃InBr₆viaantimony doping

et al. 2023

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“…Quaternary ammonium salts are cationic compounds containing alkyl groups in different lengths of carbon chains (usually including one or two long carbon chains and three or two short carbon chains), which are water soluble and can be used as disinfectants in textile industries. [48][49][50][51] Among then, double-chain didodecyldimethylammonium bromide (DDAB) has electrovalent bond and two long carbon chains, making it become an ideal substitute for OA/OAm ligands. [52][53][54][55][56] Although DDAB have been used as ligand for the synthesis of CsPbBr 3 and CsPbI 3 PNCs, few results were shown used for cyan PNCs yet.…”

Section: Resultsmentioning

confidence: 99%

Polymer‐Encapsulated Halide Perovskite Color Converters to Overcome Blue Overshoot and Cyan Gap of White Light‐Emitting Diodes

Peng

Sun

et al. 2023

Adv Funct Materials

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Currently, the most popular way to manufacture white light‐emitting diodes (WLEDs) is based on blue‐emitting InGaN LED chips (440–460 nm) and yellow‐emitting phosphor coating (520–700 nm) to produce white light lighting. However, because conventional white WLEDs lack the uniformly distributed continuous emission spectrum compared to natural sunlight: “blue overshoot” (extra 440–460 nm blue‐light can cause damage to the retina) and “cyan gap” (470–520 nm wavelength range). Here, a novel strategy to “kill two birds with one stone” is reported: using the stable and bright polymer encapsulated perovskite nanocrystals (PNCs) composite films as the cyan color converters that efficiently absorb the “blue overshoot” and effectively emit the cyan light to fill the “cyan gap”. A series of polymer‐encapsulated PNC films is achieved that can reach very high photoluminescence quantum yield (PL QY) of 90–95% under 450 nm blue‐light excitation. Importantly, both 370 nm UV‐excited WLED and 455 nm blue‐excited WLED devices are constructed that exhibit smoothly and evenly distributed white light without blue overshoot and cyan gap, which was not achieved before for blue‐excited cyan‐emissive materials. This study paves the way toward the application of PNC color converters in the next generation full‐visible‐spectrum WLED lighting that mimic the natural daylight.

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Bright and stable quaternary ammonium antimony halides for solid-state lighting

Abstract: Lead halide perovskite, as a promising luminescent material, has been studied extensively in recent years. However, the toxicity of lead and its reduced duration and color stability under operating conditions...

Cited by 8 publications

References 55 publications

Rational Design of a Super-Alkali Compound with Reversible Photoluminescence

Rational Design of a Super-Alkali Compound with Reversible Photoluminescence

Boosting the broadband orange emission in organic–inorganic hybrid (DPG)₃InBr₆viaantimony doping

Polymer‐Encapsulated Halide Perovskite Color Converters to Overcome Blue Overshoot and Cyan Gap of White Light‐Emitting Diodes

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Bright and stable quaternary ammonium antimony halides for solid-state lighting

Abstract: Lead halide perovskite, as a promising luminescent material, has been studied extensively in recent years. However, the toxicity of lead and its reduced duration and color stability under operating conditions...

Cited by 8 publications

References 55 publications

Rational Design of a Super-Alkali Compound with Reversible Photoluminescence

Rational Design of a Super-Alkali Compound with Reversible Photoluminescence

Boosting the broadband orange emission in organic–inorganic hybrid (DPG)3InBr6viaantimony doping

Polymer‐Encapsulated Halide Perovskite Color Converters to Overcome Blue Overshoot and Cyan Gap of White Light‐Emitting Diodes

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Product

Resources

About

Boosting the broadband orange emission in organic–inorganic hybrid (DPG)₃InBr₆viaantimony doping